Planetary napping-machine.



- E. MUNDORF. PLANETARY 111mm 11110111112. APPLICATION FILED JUNBB, 1910.

1,002,738. Patented Sept. 5,1911.

UNITED STATES PATENT OFFICE.

EMIL MUNDORF, OF AIX-LA-CHAPELLE, GERMANY.

PLANETARY NAPPING-MACHINE.

To all whom it may concern:

Be it known that I, EMIL MUNDORF, a subject of the German Emperor, and resident of Aix-laChapelle, Germany, have in vented certain new and useful Improvements in and Relating to Planetary Napping- Machines, of which the following is a specificat-ion.

This invention relates to a napping machine, the object of the invention being to provide means for conveniently and rapidly producing napped cloth.

A further object of the invention is to provide in a napping machine, a plurality of revolving napping rolls, the dents of which point in the direction of the movement of the rolls, and cooperating napping strips, the dents of which are parallel with the long axis of the carding rolls, and extend upwardly at an angle. By arranging the dents of the rolls and the strips in the manner set forth I produce napped cloth, having the fibers thereof extended to a greater degree than could be secured if all the points of the dents extended in the same direction.

The invention also relates to improve ments in the details of construction and arrangement of parts which will be hereinafter described and particularly pointed out in the claims.

In the drawingFigure 1 is a sectional view of a drum illustrating the application of the preferred form of my invention. Fig. 2 is a similar view of a different form of the invention. Fig. 3 is a detail view of the dents of the strips. Fig. 4: is a diagram illustrating the dents of one of the rolls, and one of the strips.

1 indicates a drum in which is mounted a series of rollers 2, provided with napping cloth 3, on their peripheries. The dents of of the cloth point in the direction of rotation of the rollers to engage the surface of the cloth 4:. The rollers are fitted intermediate the strips 5, which are stationary, with respect to the rollers, but revolve with the drums. These strips are provided on their outer surfaces with napping cloth, the dents of which are arranged parallel with the rollers 2, as shown clearly in Fig. 3. Each dent is bent in angular form and their free end portions extend at an angle from the strips. When in assembled form the,dents of the rollers point in the direction of the rotation of the latter, while the dents of the Specification of Letters Patent.

Application filed June 8, 1910.

Serial No. 565,888.

strips point in a direction substantially at right angles to those of the rollers where the cloth is being operated upon. The dents of the rollers engage the fibers of the cloth and lift the same from the surface, and then the dents of the strips take hold of said fibers, and by reason of their lateral disposition they pull the fibers out and thereby produce an elongated nappy surface.

In the modified form of the invention shown in Fig. 2, two drums 8 and 9 are shown. The drum 8 has mounted in it a series of rollers 10, provided wit-h napping cloth 11, arranged the same, and corresponding to the rollers 2. The lower drum 9, is provided with a series of strips 12, provided with napping cloth 13, the dents being arranged the same as on the strips 5, and act in precisely the same manner.

By reason of the peculiar form and arrangement of the teeth or dents on the raising strips, it is possible to lengthen and comb out the mass of fibers without injury to the goods, because the points or extremities of the teeth on the strips are directed transversely to the direction of the movement of the material, and transversely to the direction in which the fibers have been raised by the teeth on the raising rolls. The teeth on the strips, because of their angular direction, only work from the side. They do not penetrate the fabric, and if they contact therewith, yield because of their angular form. If these strips were angular, but did not extend transversely, they would be liable to tear the fabric and also tear the fibers. As the plane of each tooth is radial to the face of the strip, the transversely extending angular teeth do not hold in, nor tear away the fibers. The angular end portions of the teeth yield toward the strip, thus the material on which the nap is being produced is not forced against the points of the teeth as it would be if the teeth were radial and straight. The angular extremities of the teeth are elastically yielding so the fibers cannot be out. By reason of the use of these two systems of teeth, one extending transversely to the other, thorough combing and lifting of the fibers from the very bottom is efiected without injuring the fabric.

To recapitulate the advantages due to the arrangement I have described are as follows: 1. The integral ends of the teeth are Patented Sept. 5, 1911.

located transversely to the direction in which the fibers are raised and therefore do not penetrate'the fabric. 2. The fabric does not engage directly within the toothed ends, but engages with the smoothly ground part behind the extremities of the teeth. 3. The teeth are elastic and the ends will yield in both directions, either upon a pull of the fibers, or upon a pressure of the fabric. 4:- Owingto their radial position in respect to the drum over which the cloth passes, the teeth readily free the fibers which are not torn to pieces. 5. The raising strips retain the fabric in a perfectly stretch-ed condition transversely, without which no. uniform raising can be effected. This is for the reason that the transversely extending teeth tend to prevent any lateral movement of the fabric. It will be seen that were the teeth on the strips merely radial and not angularly bent parallel to the axis of the strip, each tooth would merely pass between the fibers longitudinally like a cone and would not act to fully raise the fibers. The angularly directed teeth, however, act to raise the fibers, lift their ends, and thus put the fibers in the best possible condition for being acted on by theteeth on the carding rolls.

Vhat I claim is 1. In a napping machine, the combination of a drum, a series of rollers mounted in the drum and provided with carding cloth, the

dents extending in the direction of movement of the rollers, and strips interposed between the rollers, said strips having carding cloth on their outer surfaces the dents of which extend in the direction of the axis of the drum.

2. In a napping machine, the combination of a drum formed with a series of recesses, a revolving roll provided with carding cloth and mounted in each recess in the drum, the dents of the carding cloth pointing in the direction of rotation of each roll, a strip secured on the drum between the adjacent rolls, each strip having carding cloth on its outer surface, the dents of which extend in the direction of the axis of the drum.

3. The combination of a napping roll and a napping strip over which the material being operated on successively passes, said roll having teeth inclined in the direction of rotation of the roll, the said strip having angular teeth, the ends of the teeth extending at right angles to the axis of the strip and the plane of each toot-h being perpendicular to the face of each strip.

In testimony whereof I have hereunto set my hand in presence of two witnesses.

EMIL MUNDORF.

Witnesses FRANZ BI'JNDGENS, GERHARD HARDENBERG.

Copies of this patient may be obtained for five cents each, by addressing the Commissioner of Patents Washington, D. C. V 

